[jdk11u-dev] RFR: 8217730: Split up MakeBase.gmk [v2]

[Goetz Lindenmaier]

> This is a change only moving make code from MakeBase to new files.
> The code basically remains unchanged.
> 
> There are four small differences in current 11 MakeBase to the version this
> change was originally applied to. I moved these to Utils, see the extra change 
> on top.

Goetz Lindenmaier has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains three additional commits since the last revision:

 - Merge branch 'openjdk:master' into goetz_backport_8217730
 - Move differences between current 11 and the base of the orig change to Utils.gmk
 - Backport 16271669822c7500b60fc4da6268f682d0ba581c

-------------

Changes:
  - all: https://git.openjdk.org/jdk11u-dev/pull/1695/files
  - new: https://git.openjdk.org/jdk11u-dev/pull/1695/files/f85a458e..1441ccf5

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=1695&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=1695&range=00-01

  Stats: 646 lines in 25 files changed: 311 ins; 172 del; 163 mod
  Patch: https://git.openjdk.org/jdk11u-dev/pull/1695.diff
  Fetch: git fetch https://git.openjdk.org/jdk11u-dev pull/1695/head:pull/1695

PR: https://git.openjdk.org/jdk11u-dev/pull/1695